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Updated: Sep 13, 2025
06:18
Intravascular Ultrasound Image-Based Finite Element Modeling Approach for Quantifying In Vivo Mechanical Properties of Human Coronary Artery
Published on: December 6, 2024
700
Scoring Balloon Effects on Coronary Calcified Plaque: A Finite Element Analysis
Naohiro Funayama1, Ryosuke Ito1, Yuki Ishidoya1
1Department of Cardiology, Hokkaido Cardiovascular Hospital, Hokkaido, Japan.
Summary
Scoring balloons, like Aperta NSE, apply greater stress to calcified plaques than noncompliant balloons. This suggests scoring balloons may improve lesion expansion before stenting.
Area of Science:
- Cardiovascular Interventions
- Biomedical Engineering
- Materials Science
Background:
- Calcified plaques impede percutaneous coronary intervention outcomes due to insufficient lesion expansion.
- The efficacy of scoring balloons for dilating calcified lesions remains unclear.
Purpose of the Study:
- To compare the plaque-stress effects of a scoring balloon (Aperta NSE) versus a noncompliant (NC) balloon.
Main Methods:
- Finite element method analysis of stress distribution in four stenosis models.
- Calculation of maximum and minimum principal stresses under balloon inflation.
Main Results:
- Scoring balloon (Aperta NSE) induced higher maximum principal stress in the plaque compared to the NC balloon.
- Stress distribution varied, with scoring balloons concentrating stress at plaque ends and edges.
- Increased plaque diameter reduced stress for both balloon types at equivalent pressures.
Conclusions:
- Aperta NSE scoring balloon generates superior stress on calcified plaques versus NC balloons.
- Scoring balloon pre-dilation may enhance lesion preparation for drug-eluting stent or drug-coated balloon implantation.
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